certainly.. even if its a horrible match up which im not so sure about, you can always win by just out playing your opponent during that game. if you dodge most of her poison and get in there with your shield or a jungler gank you could shove her out of lane, she loses a minion wave and you grab a side camp. you can definitely still win lane when youre at a disadvantage duel wise

It isn't a good matchup for kills, but the good thing is her CC is weak, so she can't stop you from doing what Morde does: Instakills 6 minions, then goes and does wraiths and/or wolves. Go into teamfights with a full build at 30 minutes and ults the carry.

cass is very strong vs morde...dunno why you want to be mid with morde anyway...isnt morde usually top?

cass is a pretty solid mid..not many champs are good vs her..but there are some. I have had terrible trouble with ahri and leblanc...champs with bust and gap closers are difficult for cass...akali would count also i guess though shes usually top